feat: remove Todoist integration entirely

Native tasks (native_tasks table) fully replace Todoist. All Todoist
API code, store functions, handlers, routes, templates, and tests have
been removed. Migration 021 drops the now-unused tasks cache table.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 0 insertions, 21 deletions

diff --git a/internal/store/native_tasks.go b/internal/store/native_tasks.go
index ca19377..5758407 100644
--- a/internal/store/native_tasks.go
+++ b/internal/store/native_tasks.go
@@ -2,7 +2,6 @@ package store
 
 import (
 	"encoding/json"
-	"log"
 	"time"
 
 	"task-dashboard/internal/models"
@@ -96,26 +95,6 @@ func (s *Store) UncompleteNativeTask(id string) error {
 	return err
 }
 
-// ImportFromTodoist copies all incomplete tasks from the Todoist cache into native_tasks.
-// Skips tasks already present (by ID). Returns the count of newly imported tasks.
-func (s *Store) ImportFromTodoist() (int, error) {
-	result, err := s.db.Exec(`
-		INSERT OR IGNORE INTO native_tasks
-			(id, content, description, project_name, due_date, priority, completed, labels, created_at, updated_at)
-		SELECT
-			id, content, COALESCE(description, ''), COALESCE(project_name, ''),
-			due_date, priority, 0, COALESCE(labels, '[]'), created_at, CURRENT_TIMESTAMP
-		FROM tasks
-		WHERE completed = 0
-	`)
-	if err != nil {
-		return 0, err
-	}
-	n, _ := result.RowsAffected()
-	log.Printf("ImportFromTodoist: imported %d tasks", n)
-	return int(n), nil
-}
-
 func scanNativeTasks(rows interface{ Next() bool; Scan(...interface{}) error; Err() error }) ([]models.Task, error) {
 	var tasks []models.Task
 	for rows.Next() {